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Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/lex/qi/plain_token.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/spirit/home/lex/qi/plain_token.hpp | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/lex/qi/plain_token.hpp b/3rdParty/Boost/src/boost/spirit/home/lex/qi/plain_token.hpp new file mode 100644 index 0000000..b77e2a9 --- /dev/null +++ b/3rdParty/Boost/src/boost/spirit/home/lex/qi/plain_token.hpp @@ -0,0 +1,242 @@ +// Copyright (c) 2001-2011 Hartmut Kaiser +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +#if !defined(BOOST_SPIRIT_LEX_PLAIN_TOKEN_NOV_11_2007_0451PM) +#define BOOST_SPIRIT_LEX_PLAIN_TOKEN_NOV_11_2007_0451PM + +#if defined(_MSC_VER) +#pragma once +#endif + +#include <boost/spirit/home/support/info.hpp> +#include <boost/spirit/home/qi/detail/attributes.hpp> +#include <boost/spirit/home/support/common_terminals.hpp> +#include <boost/spirit/home/support/handles_container.hpp> +#include <boost/spirit/home/qi/skip_over.hpp> +#include <boost/spirit/home/qi/domain.hpp> +#include <boost/spirit/home/qi/parser.hpp> +#include <boost/spirit/home/qi/meta_compiler.hpp> +#include <boost/spirit/home/qi/detail/assign_to.hpp> +#include <boost/range/iterator_range.hpp> +#include <boost/fusion/include/vector.hpp> +#include <boost/fusion/include/at.hpp> +#include <boost/mpl/or.hpp> +#include <boost/mpl/and.hpp> +#include <boost/type_traits/is_integral.hpp> +#include <boost/type_traits/is_enum.hpp> +#include <boost/lexical_cast.hpp> + +namespace boost { namespace spirit +{ + /////////////////////////////////////////////////////////////////////////// + // Enablers + /////////////////////////////////////////////////////////////////////////// + + // enables token + template <> + struct use_terminal<qi::domain, tag::token> + : mpl::true_ {}; + + // enables token(id) + template <typename A0> + struct use_terminal<qi::domain + , terminal_ex<tag::token, fusion::vector1<A0> > + > : mpl::or_<is_integral<A0>, is_enum<A0> > {}; + + // enables token(idmin, idmax) + template <typename A0, typename A1> + struct use_terminal<qi::domain + , terminal_ex<tag::token, fusion::vector2<A0, A1> > + > : mpl::and_< + mpl::or_<is_integral<A0>, is_enum<A0> > + , mpl::or_<is_integral<A1>, is_enum<A1> > + > {}; + + // enables *lazy* token(id) + template <> + struct use_lazy_terminal< + qi::domain, tag::token, 1 + > : mpl::true_ {}; + + // enables *lazy* token(idmin, idmax) + template <> + struct use_lazy_terminal< + qi::domain, tag::token, 2 + > : mpl::true_ {}; +}} + +namespace boost { namespace spirit { namespace qi +{ +#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS + using spirit::token; +#endif + using spirit::token_type; + + /////////////////////////////////////////////////////////////////////////// + template <typename TokenId> + struct plain_token + : primitive_parser<plain_token<TokenId> > + { + template <typename Context, typename Iterator> + struct attribute + { + typedef typename Iterator::base_iterator_type iterator_type; + typedef iterator_range<iterator_type> type; + }; + + plain_token(TokenId const& id) + : id(id) {} + + template <typename Iterator, typename Context + , typename Skipper, typename Attribute> + bool parse(Iterator& first, Iterator const& last + , Context& /*context*/, Skipper const& skipper + , Attribute& attr) const + { + qi::skip_over(first, last, skipper); // always do a pre-skip + + if (first != last) { + // simply match the token id with the id this component has + // been initialized with + + typedef typename + boost::detail::iterator_traits<Iterator>::value_type + token_type; + typedef typename token_type::id_type id_type; + + token_type const& t = *first; + if (id_type(~0) == id_type(id) || id_type(id) == t.id()) { + spirit::traits::assign_to(t, attr); + ++first; + return true; + } + } + return false; + } + + template <typename Context> + info what(Context& /*context*/) const + { + return info("token", + "token(" + boost::lexical_cast<utf8_string>(id) + ")"); + } + + TokenId id; + }; + + /////////////////////////////////////////////////////////////////////////// + template <typename TokenId> + struct plain_token_range + : primitive_parser<plain_token_range<TokenId> > + { + template <typename Context, typename Iterator> + struct attribute + { + typedef typename Iterator::base_iterator_type iterator_type; + typedef iterator_range<iterator_type> type; + }; + + plain_token_range(TokenId const& idmin, TokenId const& idmax) + : idmin(idmin), idmax(idmax) {} + + template <typename Iterator, typename Context + , typename Skipper, typename Attribute> + bool parse(Iterator& first, Iterator const& last + , Context& /*context*/, Skipper const& skipper + , Attribute& attr) const + { + qi::skip_over(first, last, skipper); // always do a pre-skip + + if (first != last) { + // simply match the token id with the id this component has + // been initialized with + + typedef typename + boost::detail::iterator_traits<Iterator>::value_type + token_type; + typedef typename token_type::id_type id_type; + + token_type const& t = *first; + if (id_type(idmin) >= t.id() && id_type(idmin) <= t.id()) + { + spirit::traits::assign_to(t, attr); + ++first; + return true; + } + } + return false; + } + + template <typename Context> + info what(Context& /*context*/) const + { + return info("token_range" + , "token(" + + boost::lexical_cast<utf8_string>(idmin) + ", " + + boost::lexical_cast<utf8_string>(idmax) + ")" + ); + return info("token_range"); + } + + TokenId idmin, idmax; + }; + + /////////////////////////////////////////////////////////////////////////// + // Parser generators: make_xxx function (objects) + /////////////////////////////////////////////////////////////////////////// + template <typename Modifiers> + struct make_primitive<tag::token, Modifiers> + { + typedef plain_token<std::size_t> result_type; + + result_type operator()(unused_type, unused_type) const + { + return result_type(std::size_t(~0)); + } + }; + + template <typename Modifiers, typename TokenId> + struct make_primitive<terminal_ex<tag::token, fusion::vector1<TokenId> > + , Modifiers> + { + typedef plain_token<TokenId> result_type; + + template <typename Terminal> + result_type operator()(Terminal const& term, unused_type) const + { + return result_type(fusion::at_c<0>(term.args)); + } + }; + + template <typename Modifiers, typename TokenId> + struct make_primitive<terminal_ex<tag::token, fusion::vector2<TokenId, TokenId> > + , Modifiers> + { + typedef plain_token_range<TokenId> result_type; + + template <typename Terminal> + result_type operator()(Terminal const& term, unused_type) const + { + return result_type(fusion::at_c<0>(term.args) + , fusion::at_c<1>(term.args)); + } + }; +}}} + +namespace boost { namespace spirit { namespace traits +{ + /////////////////////////////////////////////////////////////////////////// + template<typename Idtype, typename Attr, typename Context, typename Iterator> + struct handles_container<qi::plain_token<Idtype>, Attr, Context, Iterator> + : mpl::true_ + {}; + + template<typename Idtype, typename Attr, typename Context, typename Iterator> + struct handles_container<qi::plain_token_range<Idtype>, Attr, Context, Iterator> + : mpl::true_ + {}; +}}} + +#endif |